13531012 has 12 divisors (see below), whose sum is σ = 25832016. Its totient is φ = 6150440.

The previous prime is 13530991. The next prime is 13531019. The reversal of 13531012 is 21013531.

It is not an unprimeable number, because it can be changed into a prime (13531019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153718 + ... + 153805.

It is an arithmetic number, because the mean of its divisors is an integer number (2152668).

Almost surely, 2^13531012 is an apocalyptic number.

It is an amenable number.

13531012 is a deficient number, since it is larger than the sum of its proper divisors (12301004).

13531012 is a wasteful number, since it uses less digits than its factorization.

13531012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307538 (or 307536 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 13531012 is about 3678.4523919714. The cubic root of 13531012 is about 238.2923460686.

Adding to 13531012 its reverse (21013531), we get a palindrome (34544543).

The spelling of 13531012 in words is "thirteen million, five hundred thirty-one thousand, twelve".